Showing structure for C[Si](C)(C)OC(=O)/C(=C/C1=CC=C(O)C(O[Si](C)(C)C)=C1)OC1=CC(/C=C/C(=O)OC(CC2=CC=C(O)C(O)=C2)C(=O)O[Si](C)(C)C)=CC=C1O